Astrophysically Useful Parameters for Some Vibronic Transitions of AlH and BH

Details Astrophysically Useful Parameters for Some Vibronic Transitions of AlH and BH Astrophysically Useful Parameters for Some Vibronic Transitions of AlH and BH

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap%26ss.306..231k&link_type=abstract

Astrophysics and Space Science, Volume 306, Issue 4, pp.231-234

Mathematics

Probability

2

Alh &Amp, Bh Molecule, Astrophysical Abundances, Vibronic Transition Probability Parameters

Scientific paper

For molecular identification in astrophysical sources, an astrophysicist needs some spectroscopic parameters such as dissociation energy, vibrational or rotational temperature of the source, band or line wavelengths, transition probability parameters, etc. The Franck-Condon(FC) factors are proportional to the transition probabilities. In this study, the FC factors and r-centroids for the vibronic (vibration-electronic) transitions C 1 Σ + → X 1 Σ + of aluminium hydride (AlH), b 3 Σ ( -) → a 3 Π, C 1 Σ + → A 1 Π & C ′1 Δ → Δ 1 Π of boron hydride (BH) have been evaluated and the results are presented in tables which include band origin/head wavelengths. The physical & astrophysical significances of our evaluated FC factors & r-centroids have been discussed and the possible presence of AlH in sunspot umbral spectra is also predicted.

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